[Beowulf] InfiniBand VL15 error
prentice at ias.edu
Tue Dec 2 16:33:20 EST 2008
Greg Lindahl wrote:
> On Tue, Dec 02, 2008 at 10:24:15AM -0500, Prentice Bisbal wrote:
>> #warn: counter VL15Dropped = 476 (threshold 100) lid 1 port 1
>> Error check on lid 1 (aurora HCA-1) port 1: FAILED
> IB is blissfully fading from my brain, but I think this refers to
> control packets being dropped due to resource limits on the recipient.
> That takes talent if you're using a Mellanox HCA, as pretty much all
> of the VL15 packets are interpreted by the processor in the HCA.
> -- greg
Just my luck. I'm using Cisco HCAs, which are really Mellanox HCAs:
# lspci | grep Infini
0b:00.0 InfiniBand: Mellanox Technologies MT25208 InfiniHost III Ex
(Tavor compatibility mode) (rev 20)
Fortunately, Gilad from Mellanox has offered me some assistance off-list.
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